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YES

As of 13 August 2026, AI can complain about unfair bank charges.

This still needs a person who signs their name to it.

Can you do it?

5 minutesto a draft.

30 minutesto something you’d act on.

Cost, all in£0

Skill neededchat-fluent

Who has to check ityou

What the alternative costsThe available tool data gives no price for a solicitor or bank-complaint service.

If this goes wrong: the complaint states the wrong facts or misses the point, and you may lose time or weaken your position with the bank.

What to actually do

  1. Hand it to a person

    The route this page recommends

    A person who owns the outcome does this end to end, worth it when the failure is dear.

  2. Use a tool built for this

    Second choice

  3. Do it yourself

    The distant third

    A chat interface, chat-fluent skill, and roughly 30 minutes until you can act on the result.

    How to actually do it

    1. Open your bank statements, charge notifications and previous messages with the bank, and gather the dates, descriptions and amounts of every charge you dispute.
    2. Create a short chronology of what happened, including when you contacted the bank, what you asked for and what reply you received.
    3. Redact full account numbers, sort codes, passwords, security answers and other unnecessary personal data from copies of the evidence.
    4. Paste the prompt into ChatGPT, Claude or Gemini and add your bank name, account type, chronology, disputed charges, bank replies, evidence list and requested outcome.
    5. Ask the chatbot to separate confirmed facts from assumptions and to flag missing evidence or contradictions before it drafts the complaint.
    6. Compare the draft against your statements and bank correspondence, correcting every date, amount, name and quotation before you use it.
    7. Send the checked complaint through the bank's official complaints route and keep the submitted version, attachments and proof of sending.
    8. If the bank rejects the complaint, the matter involves a substantial loss or court action is being considered, take the papers to a solicitor or follow the relevant official escalation process.

    Prompt

    Help me draft a formal complaint to my UK bank about charges I believe are unfair. This is not professional advice. Do not decide that the charges are unlawful, do not invent facts, and do not claim that the bank must refund me. First extract a factual chronology from the information I provide, then list any gaps or contradictions, then draft the complaint.

My bank: [BANK NAME]
Account type: [ACCOUNT TYPE]
Charges disputed: [DATES, DESCRIPTIONS AND AMOUNTS]
What happened: [PLAIN FACTUAL ACCOUNT]
What I told the bank and when: [PREVIOUS CONTACT]
The bank's response: [RESPONSE OR STATE THAT THERE IS NONE]
Evidence available: [STATEMENTS, LETTERS, EMAILS OR SCREENSHOTS]
Outcome I want: [REFUND, EXPLANATION, CORRECTION OR OTHER]

Use a calm, factual tone. Separate facts from assumptions. Quote the bank only from the text I provide. Do not include full account numbers, passwords, security answers or unnecessary personal data. Give me a final checklist of every date, amount, name and quotation I must verify before sending, and identify which issues need a solicitor or the bank's formal complaints process rather than a chatbot.

    Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.

What it gets wrong

  • AI cannot decide from incomplete facts whether a bank charge is legally unfair or whether a particular remedy applies.
  • AI cannot access your account history or confirm what the bank recorded unless you provide the relevant documents.
  • AI cannot make the bank investigate, refund the charge or accept responsibility.
  • AI cannot take responsibility for the complaint, preserve your legal position or represent you in court.
  • AI cannot replace a solicitor when the loss is substantial, the facts are disputed or formal legal proceedings are involved.

Even on a YES, the friction has a name: legal accountability, judgement under ambiguity and private data access.

How we scored this

Five axes, each scored nought to two by hand: ten means AI carries the task cleanly, and the thresholds that turn a total into YES, PARTLY or NO are published in the methodology. Each axis name links to its definition.

AxisScore (0–2)
Output2
Inputs2
Verification1
Liability1
Effort delta2
Total8 / 10

The methodology and its thresholds are published in full.

FAQ

Can AI write a complaint to my bank?
Yes. It can organise your chronology, identify missing information and draft a factual complaint using the evidence you provide. Check every date, amount and quotation before sending it.
Can I get unfair bank charges refunded?
AI cannot tell you that you are entitled to a refund, because that depends on the account terms, the circumstances and the applicable rules. Ask the bank for an explanation and the outcome you want, then use its formal complaints process if needed.
Is it safe to send my bank statements to ChatGPT?
Do not paste passwords, security answers, full account numbers or unnecessary personal data into a chatbot. Redact the documents and provide only the facts and extracts needed to draft the complaint.
Do I need a solicitor to complain about bank charges?
Not usually for an initial factual complaint, which you can make yourself with AI helping to prepare the wording. This is not professional advice, and a serious loss, disputed evidence or possible court claim needs a solicitor.

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Assessed by gpt-5.6-luna (gpt-5.6-luna) on 2026-08-13, second-checked by an independent model. Wrong somewhere? Email [email protected] and it gets re-checked.

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